Here are three effective alternative ways to end a speech. Each ensures your speech ends powerfully rather than a fading away.
A summary of your most important points ending with a:
powerful quotation
challenge
call back
To work out which of these to use, ask yourself what you want people to do or feel as a result of listening to your speech. For instance;
Do you want to motivate them to work harder?
Do you want them to join the cause you are promoting?
Do you want them to remember a person and their unique qualities?